Barbara Kosacz's most recent trade in XOMA Corp was a trade of 19,979 Stock Option (Right to Buy) done . Disclosure was reported to the exchange on July 14, 2026.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| XOMA Corp | Barbara Kosacz | Director | Sale or transfer of securities back to the company at price $ 0.00 per share. | 14 Jul 2026 | 19,979 | 0 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Sale or transfer of securities back to the company at price $ 0.00 per share. | 14 Jul 2026 | 10,967 | 0 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Sale or transfer of securities back to the company at price $ 0.00 per share. | 14 Jul 2026 | 9,763 | 0 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Sale or transfer of securities back to the company at price $ 0.00 per share. | 14 Jul 2026 | 8,996 | 0 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Sale or transfer of securities back to the company at price $ 0.00 per share. | 14 Jul 2026 | 8,167 | 0 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Other type of transaction at price $ 0.00 per share. | 14 Jul 2026 | 6,269 | 0 (0%) | 0% | - | Common Stock | |
| XOMA Corp | Barbara Kosacz | Director | Sale or transfer of securities back to the company at price $ 0.00 per share. | 14 Jul 2026 | 6,152 | 0 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Sale or transfer of securities back to the company at price $ 0.00 per share. | 14 Jul 2026 | 5,101 | 0 | - | - | Stock Option (Right to Buy) | |
| LeonaBio Inc | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 23 Jun 2026 | 28,000 | 28,000 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 21 May 2026 | 3,586 | 9,557 (0%) | 0% | 0 | Common Stock | |
| LeonaBio Inc | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 09 Apr 2026 | 28,000 | 28,000 | - | - | Stock Option (Right to Buy) | |
| LeonaBio Inc | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 30 May 2025 | 20,900 | 20,900 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 21 May 2025 | 5,971 | 5,971 (0%) | 0% | 0 | Common Stock | |
| XOMA Corp | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 21 May 2025 | 5,971 | 5,971 (0%) | 0% | 0 | Common Stock | |
| LeonaBio Inc | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 24 May 2024 | 20,900 | 20,900 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 May 2024 | 9,763 | 9,763 | - | - | Non-Qualified Share Option (right to buy) | |
| Kronos Bio Inc | Kosacz Barbara | COO & General Counsel | Sale of securities on an exchange or to another person at price $ 1.18 per share. | 04 Jan 2024 | 10,676 | 928,966 | - | 1.2 | 12,636 | Common Stock |
| LeonaBio Inc | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 19 May 2023 | 20,900 | 20,900 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 17 May 2023 | 10,967 | 10,967 | - | - | Non-Qualified Share Option (right to buy) | |
| Kronos Bio Inc | Barbara Kosacz | COO & General Counsel | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2023 | 208,367 | 208,367 | - | - | Employee Stock Option (Right to Buy) | |
| Kronos Bio Inc | Barbara Kosacz | COO & General Counsel | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2023 | 138,911 | 939,642 | - | 0 | Common Stock | |
| Kronos Bio Inc | Barbara Kosacz | COO & General Counsel | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 25 Jul 2022 | 53,600 | 791,624 | - | 0 | Common Stock | |
| LeonaBio Inc | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 20 May 2022 | 13,871 | 13,871 | - | - | Stock Option (Right to Buy) | |
| XOMA Corp | Barbara Kosacz | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 18 May 2022 | 8,996 | 8,996 | - | - | Non-Qualified Share Option (right to buy) | |
| Kronos Bio Inc | Barbara Kosacz | COO & General Counsel | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2022 | 80,000 | 80,000 | - | - | Employee Stock Option (Right to Buy) | |
| Kronos Bio Inc | Barbara Kosacz | COO & General Counsel | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 15 Feb 2022 | 53,600 | 738,024 | - | 0 | Common Stock |